This is a 1 year problem and I was trying rat traps and caught a few in the attic. But they don't go near them now. I have looked all over and found two spots months ago that they had chewed through and I replaced the fascia board, with a tin backing, and they are now closed and I can not find any other openings. If I trapped any it's too hot to be up there all day and so far, no pipes have been chewed for water. So they are in and out.

I've had no luck in 6 weeks in catching what seems to be more than one critter scurrying about my attic using a 1040 trap and changing the bait weekly. I've left shelled peanuts near the trap and those have not been touched. I heard one in my wall regularly and I suspect they have a nice food supply as nothing could be in that wall.

Someone told me to leave the lights on and I have.Should I move the trap and turn off the lights? And is there a preferable location (don't know the entry spot) to place the trap as opposed to the middle of a flooring?

I'm starting to think I'm going to have to place a double thick 2x8 chock with a steel plate at each end and between each attic beam and then put 1/2" plywood board over about 750 sq feet of attic space. At least that will limit their playground. I know they love one side as the insulation is in mounds after I flatten it and last fall I noticed a side attic was missing 25 feet of padded insulation about 2 feet up from the flooring like a razor had cut it from each wall's 2x4 bay that has/had insulation. Every bit was removed for, I presume, nests...great!